Filter element fixation for filter presses

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 25/00 (2006.01) B01D 25/176 (2006.01)

Patent

CA 2380094

A method of making a filter by bonding two pieces of cloth (2,4) to the flanges (10) of a barrel-neck connector (8) by locating a ring of bonding agent (12) mixed with a metal powder between each flange and the adjacent surface of each cloth (2,4) and using induction heating to heat the metal and thus cause the bonding agent (12) to bond the cloth (2,4) to the flanges (8). The bonding agent may comprise guide legs (14) which allow its accurate location between the respective cloth (2,4) and flange (10) and/or the ring (12) may be flexible allowing the ring (12) to be flexed into position over the respective flange (10) of the barrel-neck (8).

Cette invention a trait à un procédé de fabrication d'un filtre par assujettissement de deux pièces de tissu (2, 4) aux collerettes (10) d'un connecteur en forme de fût (8), par mise en place d'un agent de liaisonnement (12) mélangé à une poudre métallique entre chaque collerette et la surface adjacente de chaque pièce de tissu (2, 4), ainsi que par utilisation d'un chauffage par induction pour chauffer le métal et, partant, faire en sorte que l'agent de liaisonnement (12) fixe les pièces de tissu (2, 4) aux collerettes (8). Cet agent de liaisonnement peut comporter des tiges de guidage (14) autorisant une mise en place précise entre les pièces de tissu (2, 4) et la collerette (10) et/ou l'anneau constituant cet agent de liaisonnement (12) peut être souple, ce qui permet de l'incurver pour lui faire prendre une certaine position au-dessus de la collerette (10) du fût du connecteur (8).

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